Network topology

Relationships come from RIS AS_PATH observations; direction represents path position, not a commercial contract or traffic direction.

AS36787

Currently announcedSnapshot awaiting refresh

Hearst-Argyle Television, Inc. · WMTW-TV-PORTLAND

Last observed10/3/2026, 00:08:52Open ASN profile →

AS36787 relationship topology

Showing 2 / 2

AS36787Hearst-Argyle Televisio…

UpstreamDownstreamUncertain relationshipNodes are ordered by observed weight

SELECTED NODEAS21547FirstLight Networks, LLC

Relationship: Upstream
Observed weight: 285
ASN registration country: United States
Latest RIS data: 10/2/2026, 00:00:00

Open AS21547 profile →

All adjacent autonomous systems

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2 relationships

ASN	Organization	Relationship	ASN registration country	RIS observation start	Latest RIS data	IPv4	IPv6
AS21547Observed weight 285	FirstLight Networks, LLC	Upstream	United States	8/21/2019, 00:00:00	10/2/2026, 00:00:00	382	0
AS701Observed weight 260	UUNET - Verizon Business	Upstream	United States	8/21/2019, 00:00:00	10/2/2026, 00:00:00	331	0

CHA.LA ASN relationship snapshotRelationships are normalized by CHA.LA from collected routing observations and registration context.CHA.LA routing observations · registration context